All categories

3 years ago

Please help!! Will mark Brainliest answer!! I have the answers I only need the step by step process!

Mathematics

2 answers:

Makovka662 [10]3 years ago

7 0

Answer:

Step-by-step explanation:

Y = 3x + 16 - 27

= x = 27 + 16 -3=40as

-Dominant- [34]3 years ago

4 0

Hello,

(a+b) (a-b) = a² - b²

or a² - b² = (a+b) (a-b)

Step-by-step explanation:

3 ( (x+4)² - 9 ) = 3 ( (x+4)² - 3² ) = 3 (x+4+3) (x+4-3) = 3 (x+7) (x+1)

- (x+9)² + 1 = - ( (x+9)² - 1²) = - (x+9+1) (x+9-1) = - (x+10) (x+8)

You might be interested in

What is the value of x

Pachacha [2.7K]

It depends on your Divisor, Product, or Value. There is just not a gaven value for X or X=0

4 0

3 years ago

A filter filled with liquid is in the shape of a vertex-down cone with a height of 9 inches and a diameter of 6 inches at its op

Alina [70]

Answer: Level of the liquid dropping at 28.28 inch/second when the liquid is 2 inches deep.

Step-by-step explanation:

Since we have given that

Height = 9 inches

Diameter = 6 inches

Radius = 3 inches

So, $\dfrac{r}{h}=\dfrac{3}{9}=\dfrac{1}{3}\\\\r=\dfrac{1}{3}h$

Volume of cone is given by

$V=\dfrac{1}{3}\pi r^2h\\\\V=\dfrac{1}{3}\pi \dfrac{1}{9}h^2\times h\\\\V=\dfrac{1}{27}\pi h^3$

By differentiating with respect to time t, we get that

$\dfrac{dv}{dt}=\dfrac{1}{27}\pi \times 3\times h^2\dfrac{dh}{dt}=\dfrac{1}{9}\pi h^2\dfrac{dh}{dt}$

Now, the liquid drips out the bottom of the filter at the constant rate of 4 cubic inches per second, ie $\dfrac{dv}{dt}=-4\ in^3$

and h = 2 inches deep.

$-4=\dfrac{1}{9}\times \pi\times (2)^2\dfrac{dh}{dt}\\\\-9\pi =\dfrac{dh}{dt}\\\\-28.28=\dfrac{dh}{dt}$

Hence, level of the liquid dropping at 28.28 inch/second when the liquid is 2 inches deep.

7 0

3 years ago

Geometry questions, help ya girl out

coldgirl [10]

Answer:

3. a

4. d

5. a

Step-by-step explanation:

7 0

3 years ago

One way to divide decimal numbers is to use an equivalent expression.

Umnica [9.8K]

Answer:

Step-by-step explanation:

To determine how much a decimal was multiplied, you need to find how many places the decimal moved.

In this case we can see the decimal moved once. How many times the decimal moved can be represented by the zeros in the number. So 10 = 1

100 = 2 1,000 = 3 and it keeps going.

So since the decimal moved 1 time, the answer to question one is 10

Now question 2.

Both 8.4 ÷ 2.1 and 84 ÷ 21 will give the exact same answer. It is just easier to solve. So solve which one is easier for you. I did 84 ÷ 21.

84 ÷ 21 = 4

We can verify our answer by multiplying the the divisor by the quotient

21 * 4 = 84

So 4 is the answer to question 2

6 0

3 years ago

(X+5)(x-3) Find the product

Allisa [31]

Answer:

(x-3) (x+5) => x*x+5x-3x-15

=> x*x+2x-15

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers